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-rw-r--r--mesalib/m4/ax_prog_flex.m42
1 files changed, 1 insertions, 1 deletions
diff --git a/mesalib/m4/ax_prog_flex.m4 b/mesalib/m4/ax_prog_flex.m4
index 117f8fe67..82fbc30c3 100644
--- a/mesalib/m4/ax_prog_flex.m4
+++ b/mesalib/m4/ax_prog_flex.m4
@@ -53,7 +53,7 @@ AC_DEFUN([AX_PROG_FLEX], [
AC_REQUIRE([AC_PROG_EGREP])
AC_CACHE_CHECK([if flex is the lexer generator],[ax_cv_prog_flex],[
- AS_IF([$LEX --version 2>/dev/null | $EGREP -q '^flex '],
+ AS_IF([$LEX --version 2>/dev/null | $EGREP -q '^\<flex\>'],
[ax_cv_prog_flex=yes], [ax_cv_prog_flex=no])
])
AS_IF([test "$ax_cv_prog_flex" = "yes"],